Choose the option that correctly changes the voice. **Convert the sentence provided below from its passive voice structure to an active voice structure: The encrypted files had been destroyed by the hackers before authorities traced them.**
Options:
- A: The hackers destroyed the encrypted files before authorities traced them.
- B: The hackers had destroyed the encrypted files before authorities traced them.
- C: The hackers have destroyed the encrypted files before authorities traced them.
- D: The hackers were destroying the encrypted files before authorities traced them.
Related Practice Questions:
- A sum of ₹4000 is invested at compound interest for 2 years at a rate of 10% per annum. What will be the total amount at the end of 2 years?
- At what rate of simple interest per annum will a sum of money double itself in 8 years?
- The difference between the compound interest and simple interest on a certain sum of money for 2 years at 5% per annum is ₹25. Find the sum.
- The study of living organism :
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